Metals generally react with dilute acid to produce hydrogen gas. Which among the following metals does not produce hydrogen gas?
A
Magnesium
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B
Gold
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C
Zinc
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D
Sodium
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Solution
The correct option is B Gold Metals react with acid to form salt and hydrogen gas. Metals like sodium and magnesium react vigorously with
acid and form salt and hydrogen gas whereas zinc gives a moderate reaction with acid. Gold being a noble metal does not react with acids.